hartley
8
9.9
A unit for measuring information equal to choosing one of ten equally likely options
- noun
- /ˈhɑrtli/
- Specialized
:
hartley
- In information theory, one hartley represents the amount of information gained by a choice that reduces uncertainty by a factor of ten.
Examples
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The scientist explained that the hartley is a unit of measurement for information in communication theory.
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Using a hartley, we can quantify the entropy in the data set more effectively.
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Hartley lifted my eyes to the hills, and from them, through my most tormented years, came peace.
Academic text (2003)
Synonyms
1
9.9
A unit of information equal to the amount from a one-in-ten chance
is the general base ten unit not tied to a specific probability
9.9
A unit that measures information using base ten
is the exact technical term for the same unit
9.9
A unit of information equal to one digit in base ten
is the broader unit based on base ten and powers of ten
Surface Forms
Etymology
The word hartley is named after the engineer Ralph Hartley, who measured information using 'decimal' steps based on ten. So one hartley is the amount of information you get when you pick one thing out of ten equally likely choices, which is why the unit measures information in base ten.